According to a statement by the Rio Justice tribunal, Judge Keyla Blanc De Cnop, of the Special Court of the Fan and Major Events, ordered search warrants for American swimmers Ryan Lochte and James Feigen and the seizure of their passports.

The swimmers are involved in an investigation into an alleged robbery that reportedly happened in the early hours of Sunday.

Lochte has already left Brazil and returned to the U.S., his lawyer, Jeff Ostrow, told CNN.

Police in Rio de Janeiro visited the Olympic Village on Wednesday with further questions about the report.

“There was no effort to detain anyone, but police did have further questions this a.m.,” US Olympic Committee spokesman Patrick Sandusky said.

“It is a matter for our consulate and US Citizen Services, and we will continue to cooperate with all involved.”

Lochte, Gunnar Bentz, Jack Conger and Jimmy Feigen say they were robbed at gunpoint early Sunday in a taxi bound for the Olympic Village by individuals posing as armed police officers, the US Olympic Committee said Sunday. The robbery — during which one of the bandits was said to have put a gun to Lochte’s forehead — reportedly occurred after the athletes left a hospitality house hosted by France.